| 防污染连续冲砂工艺技术 |
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| 引用本文： | 田播源,郐凤彩,顾宏伟.防污染连续冲砂工艺技术[J].特种油气藏,2001,8(2):63-66. |
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| 作者姓名： | 田播源 郐凤彩 顾宏伟 |
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| 作者单位： | 1. 辽河油田分公司采油工艺研究院,辽宁,盘锦,124010
2. 辽河石油勘探局辽河石油学校,辽宁,盘锦,124103 |
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| 摘 要： | 防污染连续冲砂工艺是一种新型冲砂工艺技术。该技术利用封隔器、双层管柱和负压举升装置构成防污染冲砂系统；利用地面液流控制组合阀控制上流和侧流阀的开关，以保证地面不停泵即可连接油管，从而达到防油层污染连续冲砂的目的。经现场13口井（稠油井7口，稀油井6口）验证，该工艺具有施工安全、返速高、携砂能力强、冲砂时间短、不污染地层、连续冲砂的特点，尤其适合井底压力低，漏失严重的各类出砂油井的冲砂作业。
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| 关 键 词： | 连续冲砂工艺 液流控制组合阀 封隔器 负压举升装置 冲砂喷嘴 防污染 油田开发 油井 |
| 文章编号： | 1006-6535(2001)02-0063-04 |
| 修稿时间： | 2000年9月8日 |
Anti-pollution and continuous sand flushing technique |
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| Tina Boyuan,Hui Fengcai,Gu Hongwei.Anti-pollution and continuous sand flushing technique[J].Special Oil & Gas Reservoirs,2001,8(2):63-66. |
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| Authors: | Tina Boyuan Hui Fengcai Gu Hongwei |
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| Abstract: | Anti-pollution and continuous sand flushing is a novel technique with the combined action of packer, dual layered string and underbalanced lifting unit. Controlling upwards flow valve and side flow valve with surface fluid combined control valve can ensure tubing continuous connection without pump stop so that to achieve continuous sand flushing and oil formation free of damage. 13 wells comprising 7 heavy oil wells and 6 light oil wells have proven its suitability for low pressurized bottomholes and various sand producing oil wells with severe loss. Besides, this technique features safe operation, high return velocity, strong sand carrying capability, short sand flushing time, formation damage free and continuous operation. |
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| Keywords: | continuous sand flushing technique fluid combination control valve packer underbalanced lifting unit sand flushing nozzle anti-pollution |
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